10.6 Functional Safety Option 1 (I/O, SIL2 PLd)
Beta Drives: STO function of AKD2G is neither approved nor certified. Do not use this func-
tionality in applications with functional safety request.
Valid for AKD2G devices with Functional Safety Option 1:
Standards
Standard Edition Content
ISO 13849 2015 Safety of machinery: Safety-related parts of control systems
IEC 62061 2015 Functional safety of electrical/electronic/programmable electronic
safety-related systems
Available Safety Functions
Abbr. Function Activation Refer to
STO Safe Torque Off Safe digital inputs for one or for both axis (ā # 129)
10.6.1 Technical Data
Safe inputs are fixed to the STO function.
When STO function (Safe Torque Off) is not needed, then all STO inputs must be connected
directly with +24 V. The STO function is then bypassed and cannot be used.
I/O data
Reference ground is DGND
Galvanic isolation for 60 VDC
Activation delay about 5 Āµs
De-activation delay about 500 Āµs
Use 24 VDC Ā±15% PELV power supply
High level 17 VDC to 30 VDC, 5 mA to 6 mA
Low level 0 VDC to 5 VDC, max.1 mA
Pinout
X21 Signal Description
A11 STO-A-A1 STO channel A (for axis 1)
B11 STO-B-A1 STO channel B (for axis 1)
Drives with two axes, or option IO or DX:
X22 Signal Description
A12 STO-A-A2 STO channel A (for axis 2)
B12 STO-B-A2 STO channel B (for axis 2)
Keywords
Keyword Description
AXIS#.SAFE.STO.A Reads the status of STO input channel A for axis #.
AXIS#.SAFE.STO.B Reads the STO input channel B for axis #.
AXIS#.SAFE.STO.ACTIVE Reads the STO status of axis#.
AXIS#.SAFE.STO.REPORTFAULT F9000 and W9000 are triggered for axis # only, if set
to 1 (default).
For full keyword description refer to the Functional Safety Parameter Reference Guide (ā #
135).
Factory Default Settings
AXIS#.SAFE.STO.REPORTFAULT is set to 1.
AKD2G-S Installation, Safety 1 | 10 īīFunctional Safety
Kollmorgen | kdn.kollmorgen.com | S101, December 2018 127
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